Fluorescent tube



FIG. 1 is a perspective view of a fluorescent tube showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear side elevational view thereof;

FIG. 6 is a right plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a fluorescent tube, as shown and described. 